Q:
PHP program to check a constant is defined or not
belongs to collection: PHP Classes & Objects Programs
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Php programming
Program/Source Code:
The source code to check a constant is defined or not is given below. The given program is compiled and executed successfully.
Output:
Explanation:
In the above program, we defined a constant PI initialized with 3.14. Then we checked constant PI is defined or not using the defined() method and then print the appropriate message on the webpage.
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